Improvement in sash-fastenings



Massese-m- .a ..1 @met i (time.

CHARLES PERLEY,

0F NEW YORK, NQY'.

Lette/rs Patent No. 890,188, dated Ma/y 18, 1869.

IMPROVEMENT IN SASH-FASTENING-S.

The Schedule referred to in these Letters Patent and making peut of thesame.

full, clear, and exact description of the said invention,

reference being had to the annexed drawing, making ypart of thisspecification, wherein- Figure lis an elevation of said sash-fastener,the sashes being shown in section.

Figure 2 is a plan of the fastening detached.

Similar parts are indicated by the same letters.

Sash-fastenings have before been made with a hinged stop, one leaf ofthe hinge being screwed to the top of the lowersash, and the swingingleaf setting up beneath a stop and bolt. In this character of fastening,the swinging leaf had to be turned up to its place, and was not in anyrespect self-acting.

My invention consists in a T- shaped pawl, the endpiece of which isconiined, by a slotted strap, to the upper edge of the sash, so thatonly a limited motion is allowed to the same, and the moving end of thepawl lies against the upper sash, and is self-acting, by falling into anotch in the upper sash, when the window is closed.

In the drawingwis the pawl, with the T- shaped end, that is rounded, asat l1, to form the axis on which the pawl swings.

c is astrap, that sets over the partsb of the pawl, to hold the same inplace, and in said strap is a slot,

or mortise, for the pawl a to pass through, and the end of this slotlimits the movement of the slot, so that it cannot be turned back Farenough for the moving end of the pawl to remain away from the surfaceofthe upper sash, d, but said pawl will fall when not held back, andhence be self-acting.

In the surface of the sash d, one or more notches are formed, for theend of the pawl a to drop into, and prevent the upper sash being drawndown, 'or the unider sash pushed up, and, by having two or more of thesenotches, the window can be left partially open, either at top or bottom,and be secure against being opened widen I prefer to make the notch forthe end of the pawl by driving into a hole in the upper sash a roundplug of metal, in the end of which plug the offset, or shoulder for thepawl is formed, as seen at e.

p What I claim, and desire to secure by Letters Patent, is-

The pawl lt,'with its T-,head, in combination with the strap, settingover said pawl, and provided with a mortise, for the pawl to passthrough, constructed and `arranged as and for the purposes set forth.

4In witness whereof, I have `hereunto set my signature, this 11th day ofFebruary, A. D. 1869.

CHARLES PEBLEY.

Witnesses:

' OHAs. H. SMITH,

GEO. T. PINCKNEY.

